Tube-polishing machine.



J. F. GAIL.

TUBE POLISHING MACHINE.

APPLICATION FILED FEB. s, 1914.

Patented Dec. 1, 1914.

7 SHEETS-SHEET 1.

HE NORRIS PETERS C41, PHOm-LITHQ. WASHINGTON, D. C.

J. I. GAIL.

TUBE POLISHING MACHINE.

APPLICATION FILED FEB. 6, 1914, 1,1 19,751 Patented Dec. 1, 191

7 SHEETS-SHEET 2.

\m I NM THE NORRIS PETERS Co. PHOTO-LITHQI WASHINGTON. n. c

J. F. GAIL.

TUBE POLISHING MACHINE.

APPLICATION FILED THE. 6, 1914.

. 1 119 75L z Patented Dec. 1, 1914.

7 SHEETS-SHEET 3.

"HE NORRIS PETERS C0.. FHUTO-LITHQ, WASHINGTON. D, r.

J. F. GAIL.

\ TUBE POLISHING MACHINE.

APPLICATION FILED THE. 6, 1914.

Patented Dec. 1, 1911 7 SHEETS-SHEET 4.

H/F NORRIS F'EILRS co F'HCITO-LITHQ: wnsmrvc cm. D. Cv

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SI Wmmma a J2EE E Izw/d J. F. GAIL.

TUBE POLISHING MACHINE.

APPLICATION FILED FEB. 6, 1914 Patented Dec. 1, 191% 7, SHEETS-SHEET 5.

we. NORRIS PETERS CO.. PHOTU -LITHO WASHINGTON, u. I

J. F. GAIL. TUBE POLISHING MACHINE.

APPLICATION FILED ran. 6, 1914.

1,119,751. Patented Dec. 1, 1914.

k '1 fl & s I 1 I 1 llllll lllllllll r llll 1 P g THE NORRIS PETERS CU" PHOTOJJTHQ. WASHINGTON. D. C

J. F. GAIL.

TUBE POLISHING MACHINE.

APPLICATION FILED FEB. 6, 1914.

1,1 19,751 Patented Dec. 1,1914.

7 SHEETS-11337. 7.

"r cur os.

JOHN F. GAIL, F KENOSHA, WISCONSIN.

TUBE-POLISHING IVIACI-IINE.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application filed February 6, 1914. Serial No. 816,936.

To all whom it may concern Be it known that I, JOHN F. GAIL, a citizen of the United States, residing in the city of Kenosha, county of Kenosha, and State of lVisconsin, have invented certain new and useful Improvements in Tube-Polishing Machines, of which the following is a specification.

This invention relates to improvements in tube polishing machines and refers more particularly to a machine for polishing brass tubes forming parts of metal furniture, such as brass'beds, and the like.

Among the salient objects of the invention are to provide a construction by which a relatively large number of tubes may be simultaneously and automatically polished with an emery belt or other suitable polish member; to provide a construction in which the tubes are mounted on a traveling carrier driven transversely of the direction of travel of the emery belt, and in which the tubes themselves are positively rotated on their axes in the travel over the belt in order to obtain a uniform polish over the entire surface of the tubes; to provide a construction in which the emery belt is held in yieldable, but nevertheless effective frictional engagement with the traveling tubes by means of a traveling and flexible bed frame; to

provide a construction in which the tubes may be independently mounted and adjusted in position on the traveling carrier; to provide a construction in which the various operating members may be all driven from a single source of power; to provide a con struction in which tubes of varying lengths may be polished at the same time; to provide a construction which not only permits of a much larger number of tubes being polished in a given time, than by the old hand methods, but also insures a more perfect and effective polishing, the machine. of the present invention being particularly adapted for giving to the brass tubes, the so-called satin finishing effect, and in general to provide a simple and effective construction of the character referred to.

The invention consists in the matters hereinafter described and more particularly pointed out in the appended claims.

Referring to the drawingsFigure 1 is a front side elevation, with certain details omitted for sake of clearness; Fig. 2 is a similar top plan view; Fig. 3 is an "end-elevation looking in the direction of the arrow 3. Fig. 4 is an end elevation looking in the direction. of" the arrow 4t; Fig. 5 is a top plan view showing the slatted bed frame and fragmentary portion of the emery belt; Figs. 6 and 7, respectively, show opposite ends of the chain construction for driving the tube carrier; Figs. 8 and 9, show respectively, the manner of mounting the tubes on the carrier; Fig. is an end elevation of the construction shown in Fig. 9 looking in the direction of the arrow 10 Fig. 11 is a sectional detail view showing the manner of adjusting the traveling bed frame.

In the drawings1 designates the main frame, comprising side members 2, and cross connecting members 3, the side members bemg mounted in brackets at secured to main supporting standards 5 and 6. These standards are suitably bolted, or otherwise secured as shown at 7 to a main base casting 8. The standard 5 is provided with a pair of forwardly extending arms or members 9 and 10 mounted one above the other. The standard 6 is provided with similarly disposed arms or supporting members 11 and 12 respectively, the arms 9 and 11 serve as supports for the traveling tube carrier herematter described, while the arms 10 and 12 serve as a supporting frame for the belt polishing mechanism. I e i The mechanism for supporting the tubes to be polished comprises an endless carrier designated as a whole18, consisting of a series of rods 14-, squared in cross section throughout the major portion of their length. The rods terminate in round-turned ends and 16 which extend through the links '17 of the respective sprocket chains 18 and 19 and are secured thereto by pins 20. The chain 18 is trained around the sprockets '21 and 22 mounted on the shafts 23 and 24 journal-ed in the arms 9 and 11. The chain 19 is trained around the sprockets 25 and 26 mounted on shafts 23 and 2 1. On the outer end of each rod 1 1 adjacent the chain 1-8is mounted a braoketmember 27 comprising a socks-ted portion 28 and a bifurcated leg 29, the latter being rigidly secured to the rod 14. In the bracket member 27 is mounted a driven shaft 30 provided at its outer end with a spur gear 31 and at its inner end with a beveled chuck member 82. The beveled portion 38 of the chuck member which is adapted to receive the adjacent edge oftube to be polished carries a series of radially disposed ribs 3% which fit into the adjacent end of said tubes. as chuck 32 is normally held in. frictional engagement with the tubes 35 by means of a coiled expansion spring 30 mounted in a counterbore 37 in the socket member The outer end of each spring abuts against a shoulder 88 in the socket and the other end of the spring abuts against a collar 39 secured by apin 40 to the shaft 30. Referring now to the manner of holding the other ends of the tubes, each of the rods l l is provided throughout a portion of its length with a rack all on which is mounted a sliding bracket member carrying a chuck head 13 similar to the chuck head heretofore described. This bracket member is slidably mounted on the corresponding rod 1-l by means of forked arms as and 15 and cross pins el-G. Each bracket member a2 is provided with a latch a"; pivoted as shown at d8 to the bracket and provided with a tooth member and handle 50. T he tooth member l0 is adapted to engage the rack 4-1 and held in spring-gripping engagement with the rack by means of a spring 51 secured at one end to the back pin lo and at the other end to a lug or pin 52 carried by the latch member M. By raising the handle so that the tooth to passes out of engagement with the rack, the movable chuck head 13 can be adjusted on its rod 14-. to accommodate itself to the length of the tube 35. y

In order to insure of the tubes being held in proper alinement during their travel over the emery belt hereinafter described,the rods are connected by means of links 53 pirotally connected at one end to a rod and to the n adjacent rod by means of lug 5% on bracket 2? and pivot pins 55. Each of the lugs 5-.l is carried by and preferably forms an integral part of the bracket member 521'. .lE-lach bracket member is also pro vided with a flattened foot portion 56 which rides on a track 57 carried on the standard 9 by angle iron bracket 58. lit is to be understood of course, that the foot members 56 ride on the track 5? during the trarel of the carrier over the emery belt. The opposite ends of the rods 1 1 are similarly connected by bracket members 59, links 60 and pivot pins 61, the link 60 being pivoted on the rods 1 1. hash of the bracket members 59 carr'es a shoe or foot portion 62 which rides on the track member 63 during the travel of the carrier over the belt. The chains 18 and 10 are further held rigid during their travel over the belt by means of the track members 6% and 65 respectively. The track member G l is supported on the angle plate 58 by means of upstanding brackets 06 and G7. The track member 65 is supported from the arm 11 by the brackets 08. The purpose of the various track members heretofore referred to and de scribed, is to hold the lower lap of the tube carrier inflexible during its travel over the polishing belt.

'leferring now to the emery belt 69, it is preferably made in two sections 70, 70. These belt sections are mounted on rollers (1 and (2, the former serving as a driving member. The roller 71 is rigidly mounted on a drive shaft 73, the latter being jour naled at one end in the bracket 74. carried by the arm 12, and at its other end in bracket 75 secured to the standard 6. The roller 72 is mounted on an idler shaft 76, ournaled in brackets 77, 78, carried by the arm 10 and standard 5 respectively. The emery belt sections are provided with a belt tightener roller 79 j ournaled as shown at 80 in a frame member 81 pivoted as shown at 82 to supporting brackets 83 carried by the main frame. The opposite end of the frame 81 provided with an adjustable counterweight Set. The upper lapof the emery belt runs over a flexible endless bed frame designated as a whole 85. formed as shown more clearly in Fig. 5 of a series of slat members secured at either ends to endless sprocket chains 87 and 88 trained around sprockets 89 and 90 respectively. The sprockets 89 are mounted on shaft 91 journaled in bearings 92 and 93 carried by brackets l. The idler sprockets 90 are mounted on shaft 9% journaled in suitable bearings in the adjacent brackets *1. Upon the outer faces of the slats 80 are mounted plurality of felt cushion-members 95 and the slats are secured to the sprocket chains by means of angle plates 96 as shown more clearly in detail in Fig. 11. In order to hold the chains 87 and 88 taut, a shaft 97 carrying a sprocket 97 is journaled in the free ends of the links 98 pivoted as shown at 99 to the main frame. The sprockets 97 are held in engagement with the chains 87 and 88 by means of contractile springs 100.

The object of the flexible bed frame is to hold the emery belt in close frictional engagement with the tubes. T 0 this end the upper laps of the chains 87 and 88 ride over adjustable track members 101, 101 respectively. Each track member 101 comprises a steel plate mounted in a channel frame 102 which is socketed as shown at 103 to receive the upper end of a threaded post 10%. The lower end of each post 10 1- is threaded into the cross frame member 3. On the upper portion of each post we is secured a sprocket 1.05, and around these four sprockets 105 is trained a sprocket chain 106. By manually rotating the chain 106 the track members 101 are raised or lowered so as to adjust the tension on the slatted bed frame By means of the arrangement just described the adjustment of the tracks 101 will be the This endless bed frame is same throughout so as to obtain a uniform bearing of the emery belts against the tubes to be polished.

Describing now the mechanism for driving the various parts heretofore described, on one end of the machine is mounted a motor designated 107 having a drive shaft 108 and belt pulley 109. Around the belt pulley 109 is trained a drive belt 110 which extends around a second belt pulley 111 carried by stub shaft 112. The shaft 112 is journaled in brackets 113 and 1H, the latter being carried directly by the base.. On the inner end of the shaft 11:2 is mounted a spur gear 115 which meshes with a larger spur gear 116 carried on the shaft '73 heretofore described. This rotates the shaft 7 3 which carries the emery belt in the manner heretofore described. The endless bed frame 85 is like wise driven from the shaft 73 in the followingmanner:-0n the shaft 73 is mounted asprocket 117 'which is connected to the sprocket 118 by means of sprocket chains 119. The sprocket-118 is carried by the shaft 91 heretofore described. On this shaft 91 are mounted the sprockets 89 as heretofore described, around which are trained the drive chains of the flexible bed frame. It will thus be seen that rotation of the shaft 73 will rotate the shaft 91 and thus propel the slat-ted bed frame in the same direction as the polishing belt, the gear ratio between the sprockets S9 and 117 being such as to drive bed frame nearly as fast as the polishing belt. The endless tube carrier is driven from the shaft 91 which is in turn driven by the shaft 7-3 as heretofore described, in the following manner :On the shaft 91 is mounted a belt pulley 120 around which is trained a belt 121 which also extends over the pulley 122 carried by the shaft 123 sup ported in the bracket 12% and gear casing 125., On the shaft 123 is mounted a worm 126 which meshes with worm gear 127 secured-to the shaft 2%. The shaft 2% carried the gears 22 and '26 of the chains 18 and 19 heretofore described. It will thus be seen that rotation of the shaft 73 likewise drives the tube carrier. During the travel of the carriage the tubes are rotated on their axes as they pass over the emery belt. The gears 31 on the tube spindles engage a rack bar 128 supported on the angle member 58, and actuate the gears, thus rotating the tubes as they pass along the emery belt.

The operation of the machine is apparent from the foregoing description and need not be further described in detail.

The invention is not-limited to the details of construction shown, except as set forth in the appended claims.

I claim as my invention:

1. In a machine of the class described, the combination of an abrading member, means for propelling said abra-ding member, a rotatable support for holding an object to be operated upon by'said abrading member and disposed with its axis parallel with the direction of propulsion of said abrading'member, and means for propelling said support transversely across said abrading member" in a direction at right-angles to the direction of propulsion of said abrading member.

2. In a machine of the class described, the combination of an abrading member, means for propelling said abrading member at a comparatively high linear speed, a rotatable support for holding an object to be operated upon by said abrading member and disposedv with its axis parallel with the direction of propulsion of said abrading, member, and means for rotating said support at a comparatively low speed.

3. In a polishing machine, the combination of a flexible abrading member, means for propelling said abrading member, an

endless carrier traveling transversely across.

belt, a plurality of rotatable work supports on said traveling carrier having their' axes disposed substantially parallel with the direction of travel of said belt, means for rotating the work on said supports, and means for maintaining pressure between the belt and the work on said supports.

5. In a polishing machine, the combination of an endless traveling cloth polishing belt, an endless carrier traveling transversely across the direction of travel of said belt, a plurality of rotatable work supports on said traveling carrier having their axes disposed substantially parallel with the direction of travel of said belt, means for rotating the work on said supports, a substanti ally rigid supporting structure, and a transversely rigid and longitudinally flexible endless traveling bed interposedbetween said belt and said supporting structure.

6. In a polishing m achine, the combination of a movable polishing member, a traveling carrier, a rotatable support on said carrier for holding the work against said polishing member, and means for actuating said parts.

7. In a polishing machine, the combina tion of a traveling polishing belt, a carrier movable transversely across said belt, a support on said carrier for holding the work against said belt, means for rotating thework on said support, and means for hold.- ing the belt into engagement with said work.

8. In a polishing machine, the combination of an endless traveling polishing belt, a traveling carrier, a series of supports on said carrier for holding the Work against the polishing belt, means for rotating the Work on said supports, and means for maintaining the belt in operative engagement With the work.

9. in a polishing machine, the combination of an endless traveling polishing belt formed Wholly of fibrous material coated With an abradant, an endless carrier member adapted to travel transversely across the direction of travel of said polishing belt, and a series of supports on said carrier for holding the Work inengagement With said belt.

10. In a polishing machine, the combination of a traveling polishing belt, an endless carrier traveling across said belt, a plurality of Work supports on said traveling carrier, and means for maintaining operative engagement between the belt and the Work on said supports.

11. In a polishing machine, the combination of a traveling polishing belt, an endless carrier traveling transversely across said belt, a plurality of work supports on said traveling carrier, means for maintaining ope 'ative engagement between the belt and the Work on said. support and means for rotating the Work on said supports.

12. In a polishing machine, the combination of a traveling cloth polishing belt, a

Work support traveling transversely across said belt, and a bed member for maintaining operative engagement between the belt and the Work on said support.

13. In a polishing machine, the combination of a traveling polishing belt, an end less carrier traveling across said belt, a series of Work supports mounted on said carrier, and a bed member for maintaining operative engagen'ient between the belt and the Work on said supports.

14:. In a polishing machine, the combination of a rigid supporting structure provided With a suitable track, an endless, longitudinally articulated, transversely rigid traveling bed member, a flexible polishing belt traveling over the surface of said bed member, and a support for holding the Work in engagement With said belt.

In a polishing machine, the combination of an endless traveling bed-member, an endless polishing belt traveling over said bed-member, means for tensioning said polishing belt whereby one side of it is held in engagement With said bed-member, and a support for holding the Work in contact with the other side of said belt.

16. In a polishing machine, the combina tion of a suitably supported bed-member, a polishing belt traveling over the surface of said bed-member, a traveling carrier, and a support on said carrier for holding the Work in engagement With said belt.

1'7. In a polishing machine, the combination of an endless traveling bed-member, an endless polishing belt traveling over and in contact with said bed-member, a traveling carrier, and a support on said carrier for holding the Work in contact with the polishing belt.

18. In a polishing machine, the combination of an endless traveling flexible polishing belt, a supporting structure arranged parallel With and adjacent said belt, an'endless traveling, transversely still", articulated bed member interposed between said belt and said supporting structure and adapted to travel in the same direction and substantially at the same speed as said belt, a traveling carrier adapted to convey an object into and out of the operative'field of said belt, a

series of supports mounted on said carrier,

and means for rotating the Work on said supports.

19. In a polishing machine, the combination of an endless traveling bed-member, an endless polishing belt traveling over said bed-member and in contact therewith, an endless traveling carrier, and a series of Work supports on said carrier for holding the Work against said belt.

20. In a polishing machine, the combination or a traveling bed-member, a polishing belt traveling across said bed-member, a traveling carrier, a support on said carrier for holding the Work against said belt, and means for rotating the Work on said support.

21. In a polishing machine, the combination of an endless traveling bed-member, an endless polishing belt traveling over said bed-member, an endless carrier traveling across said belt, a series of supports on said. carrier for holding the Work against the belt, and means for rotating the Work on said supports.

:22. 111 a polishing machine, the combination of a rigid supporting structure, an articulated endless bed-member traveling over said structure, an endless polishing belt traveling over said bed-member, and a support for holding the Work in contact with the belt. A

In a polishing machine, the combination of a supporting structure, an endless bed-member traveling over said structure, an endless polishing belt traveling over said bed-member, a support for holding the Work in contact with the belt, and means for adjusting said supporting structure toward the Work.

2%. In a polishing machine, the combina tion with a traveling carrier having a series oi. tube supports, of a flexible polishing member adapted to be held in engagement with the tubes during a portion of their travel with the carrier, and means for independently and positively rotating the tubes while in engagement with said polishing member.

25. In a polishing machine, the combination with an endless traveling carrier havin a series of tube supports, of an endless traveling polishing belt adapted to engage the tubes on the carrier during a portion of their travel with the latter, means for independently rotating the tubes on their supports while in engagement with the belt, a traveling bed-f ame member for holding said belt yieldably in engagement with tubes, and means for driving said bedframe, belt and carrier. I

26. In a tube polishing machine, the combination with an endless raveling carrier having a plurality of tube supports, an endless traveling polishing belt, means for holding said belt yieldably in engagement with the tubes, means "for holding the carrier substantially inflexible during its travel over the belt, and means for actuating said various operating parts.

2-7. In a polishing mach ne, the combination with an endless traveling carrier hav ing a plurality of adjustable tube supports for holding tubes of various lengths, an endless polishing belt traveling transversely of said tube supports, means for holding said belt yieldably in engagement with the tubes during their travel with the carrier, and means for driving said carrier and belt.

28. In an abrading machine, a flexible abrading member, means for propelling said abradin g member, means for holding the work in contact with said abrading member, and supporting means for said abrading member substantially preventing deformation of the abrasive surface while in contact with the work.

29. In a machine of the class described, the combination of an endless longitudinally flexible abrasive member, means forlongitudinally propelling said abrasive member, an endless longitudinally flexible and laterally stift bed-member for supportingsaid abrading member, and means for propelling said bed-member.

30. In a machine of the class described, the combination of an endless longitudinally flexible abrading member, means for longitudinally propelling said abrading member, an endless longitudinally flexible and laterally stifi bed-member for supporting said abrading member, means for propelling said bed-member, and a track for said bed-member substantially preventing its longitudinal flexing in the zone supporting the operative surface of said abrasive member.

31. In a machine of the class described, the combination of an endless longitudinally flexible abrading member, means for longitudinally propelling said abrading member, an endless longitudinally flexible and laterally stiff bed-member for supporting said abrasive member while in contact with the work, means for propelling said bed-member in the same direction and substantially at the same speed as said abrading member, and a track for said bed-member substantially preventing its longitudinal flexing in the zone supporting the operative surface of said abrasive member.

In a machine of the class described, the combination of an endless longitudinally flexible abrading member, means for longi tudinally propelling said abrading member, a bed member extending laterally across and supporting the belt in its operative zone, and means for moving said bed member along the belt to change the position of the operative zone of said abrading member.

In a polishing machine, the combination oi an endless traveling bed member, a rigid support for said member, an endless polishing belt traveling in the same direction and substantially at the same speed as said bed member, and supported by the latter, an endless traveling carrier, work supports on said carrier, and means for rotating work on said supports.

34-. In a polishing machine, the combination of a moving polishing member, a carrier traveling over said polishing member, and a series of work supports on said car rier each comprising a head stock, a tail stock, a rigid member connecting said stocks, rotating means associated with the head stock, means for adjusting the spacing of less traveling carrier moving transversely across said polishing belt, and a series of work supports mounted on said carrier each comprising a head stock, a tail stock, said stocks having their axis parallel with the direction of travel of said belt, a rigid member connecting said stocks, means associated with one of said stocks for rotating the work, means for adjusting the spacing of said stocks on the rigid connecting member to accommodate various lengths of work, and spring operated engaging means on one of said stocks permitting insertion and removal of'the work without adjustment of either stock.

36. In a machine of the class described, the combination of an endless traveling belt having its outward surface coated with abrasive material, an endless carrier traveling outside of and laterally across said belt,

series of holders on said carrier for holdnw' "he work against the abrasive surface ders, a supporting structure on the l I inside of the belt holding the belt against the work, a traveling bed member interposed l "can the belt and the supporting strucand running in the same direction and substar the same speed as the belt, and me; 1' driving said belt carrier and bed 1' oi. r i. an abrading machine, the combination of an endless traveling", flexible, abrading belt having its outward surface coated with abrasive material, an endless longitudinally flexible carrier traveling above and aterally across said belt, a series of supports on said carrier for holding the Work against the abrasive suriace of said belt, means for rotating the Work on s: id supports, an adjustable siuiporting structure on the inside of the belt holding the belt against the Work on said supports, a traveling-g longitudinally flexible and laterally stiff bed member interposed between the belt and the supporting structure and running in the same direction and substantially at the same speed as the belt, means for adjusting the sup 'iorting structure toward the work, means for driving said belt carrier and bed member, and means for taking up the slack in said belt.

In a polishing machine, the combination of a supporting frame having a suitable base and outwardly projecting arm at each end of said frame, a pair of belt pulleys mounted on parallel shafts carried by said projecting arms, a polishing belt carried by said pulleys and extending around said projecting arms, means for driving one of said pulleys, an endless carrier traveling above and across the abrasive surface of the belt, a series of Work supports on said carrier for holding the Work against the polishing be t, and an endless bed n'iember contained Within the area surrounded by the belt and maintaining said belt in contact with the Work.

89, In a polishing machine, the combination of a supporting frame having a suitable base, an u per and lower outwardly projecting arm at eachend of said frame, a pair of belt pulleys mounted on parallel shafts carried by said lO'WQl. projecting arms, a polishing}; belt with. an outer abrasive surface carried by said pulleys and extending around said lower projecting arms, means for driving one of said pulleys, an endless carrier supported on said upper arms traveling; above and across the abrasive surface of the belt, a series of Work supports on said carrier for holding the Work against the polishing belt, means for rotating the work on said supports, an endless bed member traveling under the belt and contained Within the area surrounded by the belt and maintaining said polishing belt in operative engagement with the Work, and a frame for supporting said bed member While in engagement with the belt.

i0. in a polishing machine, the combine tion of a frame structure provided with a suitable base and upper and lower projecting arms at each end thereof, a pair of belt pulleys mounted on parallel shafts carried by the lower projecting arms, an endless polishing belt with an outer abrasive surface carried by said pulleys and extending around said lower projecting arms, means for driving one of said pulleys, means for taking up the slack of said belt, an endless carrier carried by the upper projecting arms and traveling; above and laterally across the polishing belt, a series of adjustable Work supper s on said carrier for holding the work against the polishing belt, means for rotating the Work on said supports, an endless traveling longitudinally flexible bed member below the upper portion of the belt and contained Within the area surrounded by the belt and maintaining said belt in operative engagement With the Work, and an adjustable supporting frame for said bed member.

JOHN F. Alla.

Witnesses JOHN Burns, J. H. GANTWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ".iatents,

Washington, D. G. 

